12 Jun NSU BIOLOGY 1510 -What are the features of prokaryotes
Question
1. What are the features of prokaryotes? Small that eukaryotes, no nucleus,
no membrane bound organelles, divide by binary fission, capsule made of
polysaccharides, most have flagella, nucleoid contains DNA. Bacteria and
Archaea, unicellular, lack membrane bound organelles or other internal
membrane structures, single chromosome,
2. What are five reasons that make bacteria masters of adaptation? They can
vertically and horizontally transfer plasmids, they reproduce easily, they can
transfer from different environments and adapt fast, they have variation
and heritability.
3. Flagella are present in bacteria, archaea, and eukaryotes but are these
flagella homologous or analogous traits? Analogous Trait!
4. Where did the flagella come from in bacteria. What is evidence of this?
Modified Protein
5. Bacteria reproduce clonally which should decrease genetic variation. How
do bacteria solve this problem?
6. What are the three routes of recombination in bacteria?
7. How is conjugation similar to cultural evolution? (this is a tricky one)
8. What features of transduction may help us resolve genetic diseases in
humans?
9. Are plasmids part of bacteria or something else? Explain your answer.
10.Can all bacteria produce a sex pilus and perform conjugation? Why?
11.What is quorum sensing? How can it produce biofilm communities?
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